<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>gl_TessLevelInner - OpenGL ES 3.2 Reference Pages</title>
    <link rel="stylesheet" type="text/css" href="opengl-man.css"/>
    <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"/>
    <script type="text/x-mathjax-config">
            MathJax.Hub.Config({
                MathML: {
                    extensions: ["content-mathml.js"]
                },
                tex2jax: {
                    inlineMath: [['$','$'], ['\\(','\\)']]
                }
            });
        </script>
    <script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"/>
  </head>
  <body>
    <header/>
    <div class="refentry" id="gl_TessLevelInner">
      <div class="titlepage"/>
      <div class="refnamediv">
        <h2>Name</h2>
        <p>gl_TessLevelInner — contains the inner tessellation levels for the current patch</p>
      </div>
      <div class="refsynopsisdiv">
        <h2>Declaration</h2>
        <p>
            </p>
        <pre class="programlisting">// In tessellation control shaders</pre>
        <p>
            <code class="fieldsynopsis"><span class="modifier">patch out </span><span class="type">highp float </span><span class="varname">gl_TessLevelInner[2] </span>;</code>
        </p>
        <p>
            </p>
        <pre class="programlisting">// In tessellation evaluation shaders</pre>
        <p>
            <code class="fieldsynopsis"><span class="modifier">patch in </span><span class="type">highp float </span><span class="varname">gl_TessLevelInner[2] </span>;</code>
        </p>
      </div>
      <div class="refsect1" id="description">
        <h2>Description</h2>
        <p>
            Available only in the tessellation control and evaluation languages, <code class="varname">gl_TessLevelInner</code>
            is used to assign values to the corresponding inner tesellation levels of the current patch. The values written
            into <code class="varname">gl_TessLevelInner</code> by the tessellation control shader are used by the tessellation
            primitive generator to control primitive tessellation and may be read by the subsequent tessellation evaluation shader.
        </p>
        <p>
            As inputs to the tessellation evaluation shader, <code class="varname">gl_TessLevelInner</code> contains the values
            written by the tessellation control shader. 
        </p>
      </div>
      <div class="refsect1" id="versions">
        <h2>Version Support</h2>
        <div class="informaltable">
          <table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
            <colgroup>
              <col style="text-align: left; "/>
              <col style="text-align: center; " class="firstvers"/>
              <col style="text-align: center; "/>
              <col style="text-align: center; "/>
              <col style="text-align: center; " class="lastvers"/>
            </colgroup>
            <thead>
              <tr>
                <th style="text-align: left; border-right: 2px solid ; ">
                 
            </th>
                <th style="text-align: center; border-bottom: 2px solid ; " colspan="4">
                <span class="bold"><strong>OpenGL ES Shading Language Version</strong></span>
            </th>
              </tr>
              <tr>
                <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>Function Name</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>1.00</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.00</strong></span>
            </th>
                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.10</strong></span>
            </th>
                <th style="text-align: center; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.20</strong></span>
            </th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td style="text-align: left; border-right: 2px solid ; ">gl_TessLevelInner</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; border-right: 2px solid ; ">-</td>
                <td style="text-align: center; ">✔</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="refsect1" id="seealso">
        <h2>See Also</h2>
        <p>
            <a class="citerefentry" href="gl_TessLevelOuter.xhtml"><span class="citerefentry"><span class="refentrytitle">gl_TessLevelOuter</span></span></a>,
            <a class="citerefentry" href="gl_TessCoord.xhtml"><span class="citerefentry"><span class="refentrytitle">gl_TessCoord</span></span></a>
        </p>
      </div>
      <div class="refsect1" id="Copyright">
        <h2>Copyright</h2>
        <p>
            Copyright <span class="trademark"/>© 2011-2015 Khronos Group.
            This material may be distributed subject to the terms and conditions set forth in
            the Open Publication License, v 1.0, 8 June 1999.
            <a class="link" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
        </p>
      </div>
    </div>
    <footer/>
  </body>
</html>
